<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>createOffer</title>
</head>
<body>
  <div>
    <button id="createOffer">createOffer</button>
  </div>

  <script src="https://webrtc.github.io/adapter/adapter-latest.js"></script>
  <script src="js/main.js"></script>
</body>
</html>
